San Diego OKs new laws limiting pot clinics

San Diego  The San Diego City Council has approved new laws that will force about 165 medical marijuana clinics to close until they receive operating permits.

The San Diego Union Tribune says the council approved two new ordinances Tuesday despite protests from pot clinic advocates, who linked arms and sang "We Shall Overcome."

The new laws limit medical pot dispensaries to commercial and industrial zones and prohibits them within 600 feet of schools, playgrounds and other facilities. They also must hire security guards and limit operating hours.

The permit process could take a year and it's unclear how many clinics eventually will be able to operate.